$1000 isn't a lot - in many parts of the US it will cover about 1 month of rent. Try to save more money from your day job, and work on your project at night and on weekends, whenever you can. At some point, you'll decide to launch, and it may possibly become a reliable income source.
May I leapfrog off your question: If your employment contract states "any software you write, on or off the clock, is property of the employer", how would one launch under that restriction?